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<h1 id="sec_name">
<span data-if="hdevelop" style="display:inline;">energy_gabor</span><span data-if="c" style="display:none;">energy_gabor</span><span data-if="cpp" style="display:none;">EnergyGabor</span><span data-if="dotnet" style="display:none;">EnergyGabor</span><span data-if="python" style="display:none;">energy_gabor</span> (算子名称)</h1>
<h2>名称</h2>
<p><code><span data-if="hdevelop" style="display:inline;">energy_gabor</span><span data-if="c" style="display:none;">energy_gabor</span><span data-if="cpp" style="display:none;">EnergyGabor</span><span data-if="dotnet" style="display:none;">EnergyGabor</span><span data-if="python" style="display:none;">energy_gabor</span></code> — Calculate the energy of a two-channel image.</p>
<h2 id="sec_synopsis">参数签名</h2>
<div data-if="hdevelop" style="display:inline;">
<p>
<code><b>energy_gabor</b>(<a href="#ImageGabor"><i>ImageGabor</i></a>, <a href="#ImageHilbert"><i>ImageHilbert</i></a> : <a href="#Energy"><i>Energy</i></a> :  : )</code></p>
</div>
<div data-if="c" style="display:none;">
<p>
<code>Herror <b>energy_gabor</b>(const Hobject <a href="#ImageGabor"><i>ImageGabor</i></a>, const Hobject <a href="#ImageHilbert"><i>ImageHilbert</i></a>, Hobject* <a href="#Energy"><i>Energy</i></a>)</code></p>
<p>
<code>Herror <b>T_energy_gabor</b>(const Hobject <a href="#ImageGabor"><i>ImageGabor</i></a>, const Hobject <a href="#ImageHilbert"><i>ImageHilbert</i></a>, Hobject* <a href="#Energy"><i>Energy</i></a>)</code></p>
</div>
<div data-if="cpp" style="display:none;">
<p>
<code>void <b>EnergyGabor</b>(const HObject&amp; <a href="#ImageGabor"><i>ImageGabor</i></a>, const HObject&amp; <a href="#ImageHilbert"><i>ImageHilbert</i></a>, HObject* <a href="#Energy"><i>Energy</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>::<b>EnergyGabor</b>(const HImage&amp; <a href="#ImageHilbert"><i>ImageHilbert</i></a>) const</code></p>
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<div data-if="com" style="display:none;"></div>
<div data-if="dotnet" style="display:none;">
<p>
<code>static void <a href="HOperatorSet.html">HOperatorSet</a>.<b>EnergyGabor</b>(<a href="HObject.html">HObject</a> <a href="#ImageGabor"><i>imageGabor</i></a>, <a href="HObject.html">HObject</a> <a href="#ImageHilbert"><i>imageHilbert</i></a>, out <a href="HObject.html">HObject</a> <a href="#Energy"><i>energy</i></a>)</code></p>
<p>
<code><a href="HImage.html">HImage</a> <a href="HImage.html">HImage</a>.<b>EnergyGabor</b>(<a href="HImage.html">HImage</a> <a href="#ImageHilbert"><i>imageHilbert</i></a>)</code></p>
</div>
<div data-if="python" style="display:none;">
<p>
<code>def <b>energy_gabor</b>(<a href="#ImageGabor"><i>image_gabor</i></a>: HObject, <a href="#ImageHilbert"><i>image_hilbert</i></a>: HObject) -&gt; HObject</code></p>
</div>
<h2 id="sec_description">描述</h2>
<p><code><span data-if="hdevelop" style="display:inline">energy_gabor</span><span data-if="c" style="display:none">energy_gabor</span><span data-if="cpp" style="display:none">EnergyGabor</span><span data-if="com" style="display:none">EnergyGabor</span><span data-if="dotnet" style="display:none">EnergyGabor</span><span data-if="python" style="display:none">energy_gabor</span></code> calculates the local contrast
(<a href="#Energy"><i><code><span data-if="hdevelop" style="display:inline">Energy</span><span data-if="c" style="display:none">Energy</span><span data-if="cpp" style="display:none">Energy</span><span data-if="com" style="display:none">Energy</span><span data-if="dotnet" style="display:none">energy</span><span data-if="python" style="display:none">energy</span></code></i></a>) of the two input images.  The energy of the
resulting image is then defined as
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Often the calculation of the energy is preceded by the convolution
of an image with a Gabor filter and the Hilbert transform of the
Gabor filter (see <a href="convol_gabor.html"><code><span data-if="hdevelop" style="display:inline">convol_gabor</span><span data-if="c" style="display:none">convol_gabor</span><span data-if="cpp" style="display:none">ConvolGabor</span><span data-if="com" style="display:none">ConvolGabor</span><span data-if="dotnet" style="display:none">ConvolGabor</span><span data-if="python" style="display:none">convol_gabor</span></code></a>).  In this case, the
first channel of the image passed to <code><span data-if="hdevelop" style="display:inline">energy_gabor</span><span data-if="c" style="display:none">energy_gabor</span><span data-if="cpp" style="display:none">EnergyGabor</span><span data-if="com" style="display:none">EnergyGabor</span><span data-if="dotnet" style="display:none">EnergyGabor</span><span data-if="python" style="display:none">energy_gabor</span></code> is the
Gabor-filtered image, transformed back into the spatial domain (see
<a href="fft_image_inv.html"><code><span data-if="hdevelop" style="display:inline">fft_image_inv</span><span data-if="c" style="display:none">fft_image_inv</span><span data-if="cpp" style="display:none">FftImageInv</span><span data-if="com" style="display:none">FftImageInv</span><span data-if="dotnet" style="display:none">FftImageInv</span><span data-if="python" style="display:none">fft_image_inv</span></code></a>), and the second channel the result of the
convolution with the Hilbert transform, also transformed back into
the spatial domain.  The local energy is a measure for the local
contrast of structures (e.g., edges and lines) in the image.</p>
<h2 id="sec_execution">运行信息</h2>
<ul>
  <li>多线程类型:可重入(与非独占操作符并行运行)。</li>
<li>多线程作用域:全局(可以从任何线程调用)。</li>
  
    <li>在元组级别自动并行化。</li>
    <li>在图像通道级别自动并行化。</li>
    <li>Automatically parallelized on  domain level.</li>
  
</ul>
<h2 id="sec_parameters">参数表</h2>
  <div class="par">
<div class="parhead">
<span id="ImageGabor" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageGabor</span><span data-if="c" style="display:none">ImageGabor</span><span data-if="cpp" style="display:none">ImageGabor</span><span data-if="com" style="display:none">ImageGabor</span><span data-if="dotnet" style="display:none">imageGabor</span><span data-if="python" style="display:none">image_gabor</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (byte / real)</span>
</div>
<p class="pardesc">1st channel of input image (usually: Gabor image).</p>
</div>
  <div class="par">
<div class="parhead">
<span id="ImageHilbert" class="parname"><b><code><span data-if="hdevelop" style="display:inline">ImageHilbert</span><span data-if="c" style="display:none">ImageHilbert</span><span data-if="cpp" style="display:none">ImageHilbert</span><span data-if="com" style="display:none">ImageHilbert</span><span data-if="dotnet" style="display:none">imageHilbert</span><span data-if="python" style="display:none">image_hilbert</span></code></b> (input_object)  </span><span>(multichannel-)image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject</span> (byte / real)</span>
</div>
<p class="pardesc">2nd channel of input image (usually: Hilbert image).</p>
</div>
  <div class="par">
<div class="parhead">
<span id="Energy" class="parname"><b><code><span data-if="hdevelop" style="display:inline">Energy</span><span data-if="c" style="display:none">Energy</span><span data-if="cpp" style="display:none">Energy</span><span data-if="com" style="display:none">Energy</span><span data-if="dotnet" style="display:none">energy</span><span data-if="python" style="display:none">energy</span></code></b> (output_object)  </span><span>image(-array) <code>→</code> <span data-if="hdevelop" style="display:inline">object</span><span data-if="dotnet" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="python" style="display:none">HObject</span><span data-if="cpp" style="display:none"><a href="HImage.html">HImage</a></span><span data-if="c" style="display:none">Hobject *</span> (real)</span>
</div>
<p class="pardesc">Image containing the local energy.</p>
</div>
<h2 id="sec_example_all">例程 (C)</h2>
<pre class="example">
fft_image(Image,&amp;FFT);
gen_gabor(&amp;Filter,1.4,0.4,1.0,1.5,512);
convol_gabor(FFT,Filter,&amp;Gabor,&amp;Hilbert);
fft_image_inv(Gabor,&amp;GaborInv);
fft_image_inv(Hilbert,&amp;HilbertInv);
energy_gabor(GaborInv,HilbertInv,&amp;Energy);
</pre>
<h2 id="sec_result">结果</h2>
<p><code><span data-if="hdevelop" style="display:inline">energy_gabor</span><span data-if="c" style="display:none">energy_gabor</span><span data-if="cpp" style="display:none">EnergyGabor</span><span data-if="com" style="display:none">EnergyGabor</span><span data-if="dotnet" style="display:none">EnergyGabor</span><span data-if="python" style="display:none">energy_gabor</span></code> returns <TT>2</TT> (
      <TT>H_MSG_TRUE</TT>)
     if all parameters are correct.
If the input is empty the behavior can be set via
<a href="set_system.html"><code><span data-if="hdevelop" style="display:inline">set_system(::'no_object_result',&lt;Result&gt;:)</span><span data-if="c" style="display:none">set_system("no_object_result",&lt;Result&gt;)</span><span data-if="cpp" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="com" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="dotnet" style="display:none">SetSystem("no_object_result",&lt;Result&gt;)</span><span data-if="python" style="display:none">set_system("no_object_result",&lt;Result&gt;)</span></code></a>.  If
necessary, an exception is raised.</p>
<h2 id="sec_predecessors">可能的前置算子</h2>
<p>
<code><a href="gen_gabor.html"><span data-if="hdevelop" style="display:inline">gen_gabor</span><span data-if="c" style="display:none">gen_gabor</span><span data-if="cpp" style="display:none">GenGabor</span><span data-if="com" style="display:none">GenGabor</span><span data-if="dotnet" style="display:none">GenGabor</span><span data-if="python" style="display:none">gen_gabor</span></a></code>, 
<code><a href="convol_gabor.html"><span data-if="hdevelop" style="display:inline">convol_gabor</span><span data-if="c" style="display:none">convol_gabor</span><span data-if="cpp" style="display:none">ConvolGabor</span><span data-if="com" style="display:none">ConvolGabor</span><span data-if="dotnet" style="display:none">ConvolGabor</span><span data-if="python" style="display:none">convol_gabor</span></a></code>, 
<code><a href="fft_image_inv.html"><span data-if="hdevelop" style="display:inline">fft_image_inv</span><span data-if="c" style="display:none">fft_image_inv</span><span data-if="cpp" style="display:none">FftImageInv</span><span data-if="com" style="display:none">FftImageInv</span><span data-if="dotnet" style="display:none">FftImageInv</span><span data-if="python" style="display:none">fft_image_inv</span></a></code>
</p>
<h2 id="sec_module">模块</h2>
<p>
Foundation</p>
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